#!/usr/bin/env bash

set -euo pipefail

if [[ -z "${VERCEL_TOKEN:-}" ]]; then
    echo "Error: VERCEL_TOKEN environment variable is not set."
    echo "Get a token from https://vercel.com/account/tokens"
    exit 1
fi

MAX_ATTEMPTS="60"
SLEEP_SECONDS="10"
VERCEL_SCOPE="zed-industries"
VERCEL_URL="https://zed.dev"

echo "Checking for in-progress deployments..."

for ((i=1; i<=MAX_ATTEMPTS; i++)); do
    RESPONSE=$(curl -s -H "Authorization: Bearer $VERCEL_TOKEN" \
        "https://api.vercel.com/v6/deployments?slug=${VERCEL_SCOPE}&state=BUILDING,INITIALIZING,QUEUED&target=production&limit=1")

    COUNT=$(echo "$RESPONSE" | jq '.deployments | length')

    if [ "$COUNT" = "0" ]; then
        echo "No in-progress deployments found. Proceeding with redeploy."
        break
    fi

    if [ "$i" = "$MAX_ATTEMPTS" ]; then
        echo "Timed out waiting for deployments to complete after $((MAX_ATTEMPTS * SLEEP_SECONDS)) seconds."
        exit 1
    fi

    echo "Attempt $i/$MAX_ATTEMPTS: Found $COUNT in-progress deployment(s). Waiting ${SLEEP_SECONDS}s..."
    sleep "$SLEEP_SECONDS"
done

echo "Triggering redeploy of ${VERCEL_URL}..."
npm exec --yes -- vercel@37 --token="$VERCEL_TOKEN" --scope "$VERCEL_SCOPE" redeploy "$VERCEL_URL"